Could you tell me who is deploying maven artifacts (http://www.mvnrepository.com/artifact/org.docbook) because as I could see it is not that much up-to-date (xml and xslt) and if you want I would like to participate to stay it up-to-date.
I am also working on a nice docbook maven plugin (http://code.google.com/p/docbkx-tools/) so having them synchronized could be nice.